Finding the Fourth Proportional to 76,827.49, 115,162.26 and 29,431.42
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Solution
The fourth proportional to 76,827.49, 115,162.26 and 29,431.42 is: 44,116.88
Step by Step Solution
- Step 1: Write the proportion equation
76,827.49 : 115,162.26 = 29,431.42 : x - Step 2: Convert to fraction form
76,827.49/115,162.26 = 29,431.42/x - Step 3: Cross multiply
76,827.49x = 115,162.26 × 29,431.42 - Step 4: Simplify right side
76,827.49x = 3,389,388,842.21 - Step 5: Solve for x
x = 3,389,388,842.21/76,827.49 - Step 6: Final answer
x = 44,116.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.